Heater



FIG. 1 is a top, front perspective view of a heater showing our newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof; the other side being themirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line showing of various feaures of the heater is forillustration purposes only and forms no part of the claimed design.

The ornamental design for a heater, as shown and described.